| // 2003-05-01 Petur Runolfsson <peturr02@ru.is> |
| |
| // Copyright (C) 2003, 2004 Free Software Foundation |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.3 Standard iostream objects |
| |
| // Check that standard streams can be used from constructors and |
| // destructors of static objects, provided that an instance of |
| // ios_base::Init has been constructed. |
| |
| void init_standard_streams(); |
| int use_standard_streams(); |
| |
| struct Strange |
| { |
| int i; |
| |
| Strange() |
| { |
| init_standard_streams(); |
| i = use_standard_streams(); |
| } |
| |
| ~Strange() |
| { |
| use_standard_streams(); |
| init_standard_streams(); |
| } |
| }; |
| |
| static Strange static_ob; |
| |
| #include <testsuite_hooks.h> |
| #include <iostream> |
| |
| void init_standard_streams() |
| { |
| std::ios_base::Init init; |
| } |
| |
| int use_standard_streams() |
| { |
| std::wcout << L"Hello, world!" << std::endl; |
| std::wcerr << L"World, hello!" << std::endl; |
| |
| int ret = std::ios_base::xalloc(); |
| std::wcin.iword(ret) = ret + 1; |
| std::wcout.iword(ret) = ret + 2; |
| std::wcerr.iword(ret) = ret + 3; |
| std::wclog.iword(ret) = ret + 4; |
| return ret; |
| } |
| |
| void test05() |
| { |
| bool test __attribute__((unused)) = true; |
| int i = static_ob.i; |
| |
| VERIFY( std::wcin.iword(i) == i + 1 ); |
| VERIFY( std::wcout.iword(i) == i + 2 ); |
| VERIFY( std::wcerr.iword(i) == i + 3 ); |
| VERIFY( std::wclog.iword(i) == i + 4 ); |
| } |
| |
| int main() |
| { |
| test05(); |
| return 0; |
| } |